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Overview Static Seals

For the static sealing of hydraulic systems, Hunger DFE also offers O-ring composite seals with extrusion-resistant back rings for standard O-ring grooves in addition to the classic, simple O-rings in hardness grades 70-90 Shore. The groove ring geometries are available especially for larger diameters and higher pressures. Support rings can be supplied in various materials in the required form for all dimensions.

To download product details please click on each picture or designation.

Profile Description Application Limits for Standard Version
Pressure
(bar)
Temp.-range
(°C)
Speed
(m/s)
OBVD ax

Composite O-Ring Backring Seal

O-ring with a permanently attached elastomer back ring. For all standard O-ring grooves. All materials used are hard-wearing and are capable of com-pensating for expansion of cylinder. Simple fitting like O-rings. Modification of standard O-ring groove is not necessary with the use of OBVD ax. The back ring of the axial version has an additional sealing lip.

500 -30...+100 --
OBVD 2ax

Composite O-Ring Backring Seal

O-ring with a permanently attached elastomer back ring. For all standard O-ring grooves. All materials used are hard-wearing and are capable of compensating for expansion of cylinder. Simple fitting like O-rings. Modification of standard O-ring groove is not necessary with the use of OBVD ax. The back ring of the axial version has an additional sealing lip.

500 -30...+100 --
S 90

Static Seal, inside or outside sealing

static sealing for O-ring grooves of cord sizes 7 mm and 10 mm, inside or outside sealing

630 -45...+120 --
POR

Precision O-Ring

available as POR 8 = 80° Shore A NBR, POR 9 = 90° Shore A NBR, POR V = 80° Shore A Viton, POR S = 70° Shore A Silicon, for use as static seal

acc. to Shore-hardness -50...+100 --
STI/STA

Support Ring, inside/outside

split element without gap, for simple installation, to prevent gap extrusion of O-rings, also available without split

630 -30...+100 --
MCOR

Multi-Component Precision O-Ring

seal for aggressive fluids, material combinations for wide ranging applications, excellent compression set, also available with back-up-rings (similar to OBVD ax or OBVD 2ax)

acc. to Shore-hardness -50...+220 --
UPOR

Precision O-Ring, Covered

for foodstuff and chemical applications, where aggressive fluids are used

450 -30...+200 --